<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>数据</title>
    </head>
    <body>
        <div id="app">
            数字为: {{ num }} <br>
        </div>

        <script type="module">
            import Vue from '../vue.esm.browser.js'
        
            const app = new Vue({
                el: '#app',
                data: {
                    num: 0
                }
            })

            console.log(app)

            // app.count = 10
        </script>
    </body>
</html>